com.gc.iotools.stream.base
Class AbstractInputStreamWrapper

java.lang.Object
  java.io.InputStream
      com.gc.iotools.stream.base.AbstractInputStreamWrapper

All Implemented Interfaces:

Closeable

Direct Known Subclasses:

RandomAccessInputStream, TeeInputStreamOutputStream

public abstract class AbstractInputStreamWrapper
extends InputStream

Provides common functionality to the easystream library:

• holds a source InputStream
• provide a closeOnce() method that's called exactly once.
• provide an implementation of #skip() and read() methods.
• Keeps track of the position in the source stream over mark and reset.

Since:

1.2.0

Author:

dvd.smnt

Field Summary

protected boolean	closeCalled
protected InputStream	source

Constructor Summary

protected

AbstractInputStreamWrapper(InputStream source)

Method Summary

void	close()
protected abstract void	closeOnce()
protected abstract int	innerRead(byte[] b, int off, int len)
int	read()
int	read(byte[] b, int off, int len)
long	skip(long n)

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

source

protected final InputStream source

closeCalled

protected boolean closeCalled

Constructor Detail

AbstractInputStreamWrapper

protected AbstractInputStreamWrapper(InputStream source)

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

innerRead

protected abstract int innerRead(byte[] b,
                                 int off,
                                 int len)
                          throws IOException

Throws:

IOException

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public final int read(byte[] b,
                      int off,
                      int len)
               throws IOException

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

closeOnce

protected abstract void closeOnce()
                           throws IOException

Throws:

IOException